A Comparison of PowerVM and x86-Based Virtualization Performance


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Virtualization technologies allow IT organizations to consolidate workloads running on multiple operating systems and software stacks and allocate platform resources dynamically to meet specific business and application requirements. Leadership virtualization has become the key technology to efficiently deploy servers in enterprise data centers to drive down costs and become the foundation for server pools and cloud computing technology. Therefore, the performance of this foundation technology is critical for the success of server pools and cloud computing.

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A Comparison of PowerVM and x86-Based Virtualization Performance

  1. 1. A Comparison ofPowerVM and x86-BasedVirtualization Performance October 20, 2009 Elisabeth Stahl, Mala Anand IBM Systems and Technology Group
  2. 2. IBM PowerVM VirtualizationVirtualization technologies allow IT organizations to consolidate workloads running on multiple operatingsystems and software stacks and allocate platform resources dynamically to meet specific business andapplication requirements. Leadership virtualization has become the key technology to efficiently deployservers in enterprise data centers to drive down costs and become the foundation for server pools andcloud computing technology. Therefore, the performance of this foundation technology is critical for thesuccess of server pools and cloud computing.Virtualization may be employed to: • Consolidate multiple environments, including underutilized servers and systems with varied and dynamic resource requirements • Grow and shrink resources dynamically, derive energy efficiency, save space, and optimize resource utilization • Deploy new workloads through provisioning virtual machines or new systems rapidly to meet changing business demands • Develop and test applications in secure, independent domains while production can be isolated to its own domain on the same system • Transfer live workloads to support server migrations, balancing system load, or to avoid planned downtime • Control server sprawl and thereby reduce system management costsThe latest advances in IBM® PowerVM™ offer broader platform support, greater scalability, higherefficiency in resource utilization, and more flexibility and robust heterogeneous server management thanever before. This paper will discuss the advantages of virtualization, highlight IBM PowerVM, andanalyze the performance of virtualization technologies using industry-standard benchmarks.PowerVMWith IBM Power™ Systems and IBM PowerVM virtualization technologies, an organization canconsolidate applications and servers by using partitioning and virtualized system resources to provide amore flexible, dynamic IT infrastructure. PowerVM delivers industrial strength virtualization for AIX®, IBMi, and Linux® environments on IBM POWER processor-based systems; the Power Hypervisor™ supportsmultiple operating environments on a single system and is integrated as part of the system firmware.PowerVM offers the flexibility of combining dedicated and shared resources in the same partition. IBMPower Systems servers and PowerVM technology are designed to deliver a dynamic infrastructure,reducing costs, managing risk and improving service levels.Processor VirtualizationPowerVM’s advanced dynamic logical partitioning (LPAR) capabilities allow a single partition to act as acompletely separate AIX, IBM i, or Linux operating environment. Partitions can have dedicated or sharedprocessor resources. With shared resources, PowerVM can automatically adjust pooled processorresources across multiple operating systems, borrowing processing power from idle partitions to handlehigh transaction volumes in other partitions.PowerVM Micro-Partitioning™ supports up to 10 dynamic logical partitions per processor core.Depending upon the Power server, up to 254 independent virtualized servers can be run on a singlephysical Power server — each with its own processor, memory, and I/O resources. These partitions can thbe assigned at a granularity of 1/100 of a core. Consolidating systems with PowerVM can reduce© IBM Corporation 2009 2All Rights Reserved
  3. 3. operational costs, improve availability, ease management and improve service levels, while allowingbusinesses to quickly deploy applications.Shared processor pools allow for the automatic non-disruptive balancing of processing power betweenpartitions assigned to shared pools, resulting in increased throughput. It also provides the ability to capthe processor core resources used by a group of partitions to potentially reduce processor-basedsoftware licensing costs.Shared dedicated capacity allows for the “donation” of spare CPU cycles from dedicated processorpartitions to a shared processor pool. The dedicated partition maintains absolute priority for dedicatedCPU cycles. Enabling this feature can help to increase system utilization, without compromising thecomputing power for critical workloads in a dedicated processor. PowerVM logical partitioning forPOWER6™ processor-based systems has received the Common Criteria Evaluation and ValidationScheme (CCEVS) EAL4+ certification for security capabilities.Memory VirtualizationPowerVM features Active Memory™ Sharing, the technology that allows an organization to intelligentlyand dynamically reallocate memory from one partition to another for increased utilization, flexibility andperformance. Active Memory Sharing enables the sharing of a pool of physical memory among logicalpartitions on a single server, helping to reduce the memory resource capacity in a consolidatedenvironment by increasing memory utilization and driving down system costs. The memory isdynamically allocated amongst the partitions as needed, to optimize the overall physical memory usage inthe pool. Along with shared memory, PowerVM also supports dedicated memory allocation, enablingpartitions sharing memory and partitions with dedicated memory to coexist in the same system.I/O VirtualizationDelivered with PowerVM is the Virtual I/O Server (VIOS), a special-purpose partition that can be used tovirtualize I/O resources to client partitions. VIOS owns the resources that are shared with clients. Aphysical adapter assigned to the VIOS partition can be shared by one or more other partitions. VIOS isdesigned to reduce costs by eliminating the need for dedicated network adapters, disk adapters and diskdrives, and tape adapters and tape drives in each client partition. With VIOS, client partitions can easilybe created for test, development, or production purposes. PowerVM also supports dedicated I/O alongwith VIOS, on the same system. Therefore, a single system can have I/O hosted by VIOS for somepartitions while other partitions can have dedicated I/O devices.Partition MobilityLive Partition Mobility facilitates the migration of a running AIX or Linux partition from one physical serverto another compatible server without application downtime for planned system maintenance, migrations,provisioning, and workload management.PowerVM Lx86 Support for Linux ApplicationsPowerVM Lx86 is a cross-platform virtualization solution that enables the running of a wide range of x86Linux applications on Power Systems platforms within a Linux on Power partition without modifications orrecompilation of the workloads. This feature enables rapid consolidation of x86 applications onto PowerSystems platforms to take advantage of the advanced performance, scalability, and RAS characteristicsWorkload Partitioning© IBM Corporation 2009 3All Rights Reserved
  4. 4. PowerVM technology also supports another mode of virtualization capability called Workload Partitions(WPARs), a software partitioning technology that is provided by AIX. Introduced with AIX Version 6,WPAR does not have any dependencies on hardware features. WPAR enables consolidation ofworkloads on a single AIX operating system by proving isolation between workloads running in differentWPARs. From an application perspective it is running in its own operating system environment. A keyfeature in WPAR is mobility; a running WPAR can be relocated from one VM to another VM irrespectiveof where the VMs are hosted. This feature enables applications to be migrated to another system duringsoftware upgrades and other planned maintenance, to balance workloads, to provision rapidly to meetgrowth dynamically and to improve energy efficiency by further consolidating on the fly during low loadperiods.Systems ManagementIBM Systems Director supports the PowerVM environment and is the IBM management tool for multiple,heterogeneous servers. IBM Systems Director supports advanced management functions such asworkload lifecycle management, health check, and topology mappings, as well as the ability to take actionon monitored eventsIBM Systems Director VMControl™ V2.2 is a plug-in option for IBM Systems Director that represents atransformation from managing virtualization to using virtualization to better manage an entire ITinfrastructure. IBM Systems Director and VMControl are designed to help reduce the total cost ofownership in a virtual environment by decreasing management costs, increasing asset utilization, andlinking infrastructure performance to business goals.VMControl is available in three Editions, to suit the varying levels of virtualization deployment at clientsites. VMControl Express Edition provides basic virtual machine lifecycle management; VMControlStandard Edition adds virtual appliance lifecycle management; and VMControl Enterprise Edition addssystem pool lifecycle management. VMControl Standard Edition captures information from active systemsand stores the information in a repository as reusable system images, also referred to as virtualappliances. VMControl Enterprise Edition allows users to create and manage system pools – or groups ofvirtual appliances deployed across multiple physical servers – as easily as managing a single entity. Theadvanced virtualization management capabilities of VMControl provide a pathway for organizations tobuild sophisticated cloud computing environments.© IBM Corporation 2009 4All Rights Reserved
  5. 5. PowerVM AdvantagesPowerVM offers a secure virtualization environment built on the advanced RAS features and leadershipperformance of the Power Systems platform. Numerous advantages of PowerVM exist including: • Higher resource utilization: PowerVM promotes high resource utilization by virtualizing resources including processors, memory and I/O across multiple virtual machines • Flexibility: PowerVM runs on all Power Systems servers, from blades to top of the line high-end servers. PowerVM provides the most flexibility in combining dedicated and shared resources in a partition supporting dynamic resource allocation. • Scalability: PowerVM supports partitions as small as 1/10 of a processor and as large as 64 physical processors. On a single Power system, up to 254 partitions can be accommodated. • Availability: Live Partition Mobility helps eliminate planned downtime by moving the partition while it is running to another server, upgrading or maintaining hardware without interrupting productive work.PowerVM is commonly employed with enterprise class applications and workloads because of its level ofsophistication and maturity. VMware vSphere is third-party software that must be installed on x86hardware that leverages hardware-assist virtualization optimizations. In contrast, Power Systems serversimplement a virtualization architecture with components embedded in the hardware, firmware andoperating system software. The capabilities of this integrated virtualization architecture are thussignificantly different and in many areas more advanced.PowerVM, by enabling “firmware-based” partitions, provides greater partition isolation than software-based virtualization technologies. Firmware-based logical partitions (or VMs) reduce the potential forperformance bottlenecks and contribute to higher levels of availability and security than may be realizedwith software-based virtualization. They also contribute to increased linear scalability.Power Systems servers and PowerVM capabilities are more granular and more closely integrated than isthe case for VMware, Hyper-V and equivalent x86-based virtualization tools. The Power Systems platformalso benefits from numerous industry-leading availability optimization features. These distinctivecapabilities have caused widespread adoption of Power Systems servers to support transaction anddatabase-intensive systems whose performance and uptime requirements are significantly moredemanding than the norm.The importance of workload management should be highlighted. Partitioning creates the potential for highlevels of capacity utilization. The extent to which this potential will be realized in practice depends on themechanisms that allocate system resources between and monitor and control workload executionprocesses across partitions. If these mechanisms are ineffective, a high proportion of system capacitymay be idle at any given time. Close integration of partitioning and workload management capabilities isnecessary to minimize risks that surges in workloads running in individual partitions will impactperformance and availability. POWER6-based systems also have larger memory per core, higher memoryand I/O bandwidth per core as well as larger cache per core compared to Intel Xeon 5500 seriesprocessors; therefore POWER6 systems can consolidated a higher number of partitions and can moreeffectively handle workload surges, leading to demonstrably higher performance.PowerVM is ultimately well optimized to handle business-critical systems and complex multi-partitionproduction environments. The next section of the paper will highlight a performance analysis of PowerVMand x86 technologies that employs industry-standard benchmarks.© IBM Corporation 2009 5All Rights Reserved
  6. 6. Performance Comparison of PowerVM and x86 VirtualizationTechnologiesTo compare the performance of virtualization technologies, it is useful to highlight industry standard andISV benchmark results. Every single Power Systems benchmark includes the hypervisor and isconsidered virtualized. Virtualized and native performance should not be confused; benchmark resultsachieved without an active hypervisor should not be confused with results that did include a hypervisor.This comparison will focus on three industry benchmarks: the online transaction processing benchmarkTPC-C, the SAP Sales and Distribution two-tier benchmark and the Storage Performance Council SPC-1benchmark.AIM7 Multiuser and DayTrader 2.0 Benchmark performance is also highlighted, comparing PowerSystems and PowerVM with Intel Xeon 5570 processors and Windows 2008 Server Hyper-V, anotherx86-based virtualization technology..Industry Standard Benchmark PerformanceTPC-C, an OLTP system benchmark, simulates an environment in which a population of terminaloperators execute transactions against a database. The benchmark is centered on the principal activitiesand transactions of an order-entry environment. These transactions include entering and deliveringorders, recording payments, checking the status of orders, and monitoring the level of stock at thewarehouses. Note that IBM is currently the only vendor publishing TPC-C results with virtualizationtechnology such as PowerVM. Figure 1 shows the TPC-C benchmark results at 4, 8, 16, and 64 cores.Even with virtualization technologies inherently included as discussed above, the greater than linearscaling of the results is noteworthy. 7, 0 0 0 ,0 0 0 6 , 0 0 0 ,0 0 0 5, 0 0 0 ,0 0 0 4 , 0 0 0 ,0 0 0 3 , 0 0 0 ,0 0 0 tpm C 2 , 0 0 0 ,0 0 0 1, 0 0 0 ,0 0 0 0 4 - co r e 8 - co r e 16 - co r e 6 4 - co r e Figure 1.IBM TPC-C Results System Chips/cores/threads Avail Date $/tpmC tpmCTPC-C IBM Power 570 2/4/8 11/26/07 $3.50 404,462TPC-C IBM Power 550 4/8/16 04/20/08 $2.49 629,159TPC-C IBM Power 570 8/16/32 11/21/07 $3.54 1,616,162TPC-C IBM Power 595 32/64/128 12/10/08 $2.81 6,085,166Source: http://www.tpc.org Results current as of 10/16/09© IBM Corporation 2009 6All Rights Reserved
  7. 7. The SAP Sales and Distribution (SD) Benchmark covers a sell-from-stock scenario, which includes thecreation of a customer order with five line items and the corresponding delivery with subsequent goodsmovement and invoicing.For 2009, the SAP SD Benchmark was updated to the SAP enhancement package 4 for SAP ERP 6.0 toreflect the practice of SAP customers across all industries. The steps of the benchmark scenarioremained unchanged but made the SD benchmark more resource-intensive. For this reason,comparisons between SAP SD results on ERP Release 6 (Figures 2, 3 and 4) with SAP enhancementpackage 4 for SAP ERP 6.0 (Unicode) (Figure 5) have been avoided in this paperFigure 2 compares a “Full Resource Partition” SAP SD 2-tier IBM result with a result that is noted asusing “virtual CPUs.” Note that the users per core is approximately the same for each result, a conclusionthat is expected as both configurations contain PowerVM and have implemented virtualization. 600 500 400 300 Users/core 200 100 0 Full Resource Partial Resource Partition Partition (vcpus)Figure 2.IBM SAP SD 2-tier “Full Resource Partition” result vs. “Partial Resource Partition (vcpus)” result System Proc chips/cores/threads Cert # Users Users/core OS ERP releaseSAP SD 2-tier result IBM Power 570 2/4/8 2007037 2035 508.75 AIX 6.1 6.0SAP SD 2-tier “virtual” IBM Power 570 2/4/8 using 2 virtual cpus 2008080 1020 510 AIX 6.1 6.0Source: http://www.sap.com/benchmark Results current as of 10/16/09In contrast, Figure 3 depicts a comparison between “single system image in native mode withoutvirtualization” results vs. results using VMware virtualization. Note that a major difference exists betweenthese two results; the “virtualized” results achieve fewer users per core. For these configurations, a priceis paid in performance for the ability to participate in x86 virtualization technologies. 240 Users/core 220 SAP SD 2-tier SAP SD virtual with 200 Vmware 180 HPFigure 3.SAP SD 2-tier “Single system OS image in native mode” results vs. “VMware Virtualization” results System Proc Cert # Users Users/core OS ERP chips/cores/threads release© IBM Corporation 2009 7All Rights Reserved
  8. 8. SAP SD 2-tier HP BL 460c blade x5355@ 2/8/8 2007002 1841 230 Windows Server 2003 6.0result 2.66GHzSAP SD 2-tier HP BL 460c blade x5355@ 2/8/8 2007035 402 201 VMware 3.01/ Windows Server 6.0virtual 2.66GHz 2003Source: http://www.sap.com/benchmark Results current as of 10/13/09Figure 4 shows users per core for virtualized results. 600 500 400 300 Users/core 200 100 0 IBM HP Sun Fujitsu DellFigure 4.SAP SD 2-tier “virtual” results System Proc chips/cores/threads Cert # Users Users/core Virtualization SW/OS ERP releaseSAP SD 2-tier IBM Power 570 2/4/8 using 2 virtual cpus 2008080 1020 510 PowerVM/ AIX 6.1 6.0virtualSAP SD 2-tier Dell PowerEdge 2/8/8 using 2 virtual cpus 2007048 421 210.5 VMware ESX 3.0.1/Windows Server 6.0virtual 2900 2003SAP SD 2-tier Fujitsu BX630 4/8/8 using 2 virtual cpus 2008008 490 245 VMware ESX 3.5/Windows Server 2003 6.0virtualSAP SD 2-tier HP DL580 4/16/16 using 2 virtual 2008007 516 258 VMware ESX 3.5/Windows Server 2003 6.0virtual cpusSAP SD 2-tier Sun Fire X2200 2/4/4 using 2 virtual cpus 2007067 380 190 VMware ESX 3.0.1 / Windows Server 6.0virtual 2003Source: http://www.sap.com/benchmark Results current as of 10/16/09Finally, Figure 5 compares an IBM result with another virtualized result using the enhancement package 4for SAP ERP 6.0 (Unicode) kit. As noted above, the IBM result used in these comparisons can be a “Fullresource partition” result or one that states “virtual cpus” (partition resource partition) since every PowerSystems result uses PowerVM. This comparison confirms that the SAP enhancement package 4 for SAPERP 6.0 (Unicode) kit does not change the basic performance and conclusions above. 500 400 300 Users/core 200 100 0 IBM FujitsuFigure 5.SAP Enhancement package 4 for SAP ERP 6.0 (Unicode) Kit Results© IBM Corporation 2009 8All Rights Reserved
  9. 9. System Proc chips/cores/threads Cert # Users Users/core Virtualization SW/OS ERP releaseSAP SD 2-tier result IBM Power 550 4/8/16 2009023 3752 469 PowerVM/AIX 6.1 6.0SAP SD 2-tier result Fujitsu 2/8/16 using 8 virtual cpus 2009029 2056 257 VMware ESX 6.0 4.0/SuSE Linux Enterprise Server 10Source: http://www.sap.com/benchmark Results current as of 10/16/09Integrated Storage Virtualization and Solid State Technology PerformanceAs shown in Figure 6, IBM recently published a new Storage Performance Council SPC-1 benchmarkresult using the IBM Power 595 with PowerVM and Solid State Drives (SSD). SPC-1 consists of a singleworkload designed to demonstrate the performance of a storage subsystem while performing the typicalfunctions of business critical applications. Those applications are characterized by predominately randomI/O operations and require both queries as well as update operations.. Examples of those types ofapplications include OLTP, database operations, and mail server implementations. It also includes somesequential IO to represent a level of batch component as might occur in a typical production environment.As detailed in the SPC-1 report, this configuration embraced virtualization to achieve a leadership result.The configuration entailed five virtual machines, one for AIX to drive the workload, and four instances ofPowerVM VIOS for redundancy and mirroring. This result is the current top SPC-1 result. System SPC-1 IOPS $/IOP Data Protection DateSPC-1 IBM Power 595 with PowerVM and SSD 300,993.85 10.71 Mirroring October 2009Source: http://www.storageperformance.org/results ; Results current as of 10/16/09.Figure 6.SPC-1 Result with PowerVMApplication Benchmark Performance: POWER6 and PowerVM vs. Intel Xeon 5570 and Hyper-VAIM7 Compute BenchmarkAIM7 Multiuser Benchmark, a well known open source benchmark, was recently run in IBM’sperformance lab. The test suites stress the CPU, memory, and I/O, covering a wide range of operations.Figure 7 depicts the Virtual Machine scaling test results between PowerVM and Microsoft WindowsHyper-V, an x86 virtualization technology, using the AIM7 Compute Benchmark. The systems under testinclude an IBM Power 550 with POWER6 processors and an HP DL370 with Intel Xeon 5570 processors,running the same level RHEL 5.3 operating system on both. The results highlight superior Powersystems and PowerVM performance on this benchmark surpassing Intel Xeon 5570 processors andHyper-V by greater than 70% across 1 to 8 VMs.© IBM Corporation 2009 9All Rights Reserved
  10. 10. AIM7 VM Scaling 150000 100000 PowerVM 50000 Hyper-V 0 1 VM 4 VMs 6 VMs 8 VMsFigure 7.AIM7 PowerVM vs. Windows Hyper-VSystem Configuration Cores Virt SW Virtual Jobs / min MachinesIBM Power 550 5GHz 64GH RAM, RHEL 5.3 SMT enabled 8 PowerVM 1 17111 4 66753 6 101214 8 135590HP DL370 Intel Xeon 5570 2.9 GHz 96GB RAM (HT and Turbo enabled in 8 Hyper-V 1 9692BIOS Intel VTx with EPT HW virtualization assist) RHEL 5.3 (GA, x86_64) 4 38114 6 54371 8 71813DayTrader 2.0 Benchmark.DayTrader2.0, an open source benchmark, was used to compare POWER6 and PowerVM performancewith Intel Xeon 5570 processors and Microsoft Windows Hyper-V. DayTrader 2.0 is a stock tradingsystem benchmark build around JAVA EE technologies. DayTrader2.0 was configured in three-tier modewhere the back-end database was installed on a separate system. The same back-end database serverand the client (JIBE drivers) systems were used in both PowerVM and Hyper-V cases. The onlydifference between the two configurations compared in this test was the system under test for theapplication server tier. The study compared the Power 550 with PowerVM and HP DL370 G6 Intel Xeon5570 system with Hyper-V technology for the application server tier running AIX and Windows 2008Server Data Center version respectively. The back-end database used IBM DB2® v9.7 and theapplication server tier used IBM WebSphere® V7.0.05 middleware software stacks.The study reveals that when running an EE JAVA application on PowerVM and POWER6 systemssurpass Hyper-V and Intel Xeon 5570 processors system by 61% with 8 vcpus. (Note that Hyper-V doesnot support 8vcpus in a single VM; therefore on Hyper-V, 2 VMs each with 4 vcpus were used to comparewith 8 vcpus results on PowerVM.)© IBM Corporation 2009 10All Rights Reserved
  11. 11. DayTrader2.0 Single VM Scaling 18000 16000 14000 12000 10000 PowerVM 8000 Hyper-V 6000 4000 2000 0 1vcpu 2vcpus 4vcpus 8vcpusFigure 8. DayTrader 2.0 PowerVM vs. Windows Hyper-VSystem Configuration Cores Virt SW Virtual Page Processors Transactions/secIBM Power 550 4.2 GHz 128GB RAM, AIX v6.1 TL03 SMT 8 PowerVM 1 2320enabled, IBM WebSphere v7.0.0.5IBM Power 570 4.7Ghz 64GB RAM, AIX v6.1 TL03 SMT enabled, 2 4609DB2 v9.7, JDBC4 JIBE Drivers 4 9132 8 16732HP DL370 Intel Xeon 5570 2.9 GHz 96GB RAM (HT and Turbo 8 Hyper-V 1 1618enabled in BIOS Intel VTx with EPT HW virtualization assist)Windows 2008 Server Data Center, IBM WebSphere v7.0.0.5IBM Power 570 4.7Ghz 128GB RAM, AIX v6.1 TL03 SMT 2 3300enabled, DB2 v9.7, JDBC4 JIBE Drivers 4 5899 8 10346ConclusionMany organizations around the globe are looking to take advantage of virtualization technologies. WithIBM Power Systems and PowerVM, clients can achieve virtualization with outstanding performance.As can be seen from the virtualization performance results, the scalability and performance of thePowerVM benchmarks are unsurpassed. Whether running an OLTP, SAP, storage or applicationworkload, the PowerVM virtualization technology produces leadership results. In fact, a Power Systemsbenchmark containing virtualization technologies may not even state that it uses PowerVM; as seen in thestudy, organizations can count on outstanding performance with no increased cost for every type ofworkload.© IBM Corporation 2009 11All Rights Reserved
  12. 12. Appendix ATest Methodology used for comparing PowerVM to Hyper-V application benchmark PerformanceThe performance evaluation was conducted at the IBM facilities, using HP DL370 G6 and POWER6Systems. Two workloads, one compute-intensive and another covering Java, were selected as these twobenchmarks run on multiple operating systems and platforms.To ensure fair comparison across platforms, and remove variability across each set of tests, the followingactions were taken:1. Deployment of similar VM configurations in terms of virtual processors and memory allocated per VM.2. The same set of “benchmark parameters” used across platforms3. Except for the virtualized workloads under investigation, the remainder of the hardware and softwareare common across the two platforms (DB server, JIBE clients etc.,)4. Tuning was performed based on best practices of respective platforms - Hyper-V, Windows, AIX, TCP/IP, WebSphere, and JVM tuninghttp://blogs.technet.com/vikasma/archive/2008/07/24/hyper-v-best-practices-quick-tips-2.aspxhttp://blogs.msdn.com/tvoellm/archive/2007/10/13/what-windows-server-virtualization-aka-viridian-storage-is-best-for-you.aspxhttp://blogs.msdn.com/tvoellm/archive/2008/04/19/hyper-v-how-to-make-sure-you-are-getting-the-best-performance-when-doing-performance-comparisons.aspxhttp://blogs.msdn.com/tvoellm/archive/2008/01/02/hyper-v-integration-components-and-enlightenments.aspxhttp://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/tprf_tunewindows.htmlSystems used:System Configuration Internal and external Storage NetworkIBM Power 550 5 Ghz, 8 cores POWER6 2 Internal SAS 400GB disks 2 Host Ethernet GbitProcessors portsHP Proliant DL 370 G6, 2.9T Ghz, 8 cores Intel Embedded SAS array controller with five 400GB 2 x NC364T quad-portXeon 5570 Processors disk and 1 72GB SAS internal disk Network adapterIBM Power 550 4.2 Ghz, 8 cores POWER6 1 Internal SAS 146GB disk 2 x FC 5767 dual portProcessors (Application Server) Gig-EIBM Power 570 4.7 Ghz, 8 cores POWER6 2 x FC 5759 dual port FC adapter 2 x FC5767 dual port GigProcessors (DB2 Server) –E IBM DS5300 with 2 EXP5000 drawers 1 Logical Volume 16 drives for logging 1 Logical Volume 16 drives for DatabaseAIM7 Compute Benchmark:© IBM Corporation 2009 12All Rights Reserved
  13. 13. Hyper-V Tests were conducted on September 28 and 29, 2009 System Tuning: - System (BIOS) default settings are used (HT enabled) Software Configuration: - Host OS: Windows 2008 Server (Data Center) SP2 - Guest OS: RHLE 5.3 (64 bit) - Applied Linux_IC RC2 package - Each VM is configured to use fixed VHD PowerVM tests were conducted on September 22 and 23 of 2009 System Tunings: - Used default system settings Software Configuration: - Host OS: PowerVM - Guest OS: RHEL 5.3 (64 bit) (SMT2 enabled) Test Methodology: - Each VM is configured with 1 virtual processor - Tests are run 1VM, 4VM, 6VM and 8VMs - For each test, required VMs are booted for running the test - Benchmark compiled using gcc compiler (used default options) on each platform - Each test was run to drive CPU utilization close to ~100%DayTrader2.0 (JDBC mode) Hyper-V tests were conducted on October 10 and 11, 2009 System Tunings: (Application Server) - System (BIOS) default settings are used (HT enabled) Software Configuration: (Application Server) - Host OS: Windows 2008 Server (Data Center) SP2 - Guest OS: Windows 2008 Server (Data Center) SP2 - Applied Linux_IC RC2 package - Each VM is configured to use fixed VHD - Each VM used virtual network adapter - IBM WebSphere PowerVM tests were conducted on September 30 and October 1, 2009 System Tunings: (Application Server) - Default system settings Software Configuration: (Application Server) - Host OS: PowerVM - Guest OS: AIX 6.1 TL 03 (SMT2 enabled) - IBM WebSphere Common system/software used in both platform Tests: Database Server - DB2 v9.7 JIBE Controllers: - 4 IBM x366 Intel Xeon 3.2Ghz 2 core, 2GB RAM - Red Hat 4.1.2-44 Test Methodology: - Single VM scaling 1, 2, 4 and 8 cores for application server - Same Database system used for both platform tests - Same JIBE clients used for both platform tests - Similar WebSphere tunings for both platform tests - One WebSphere instance per 2 cores in all tests - Each test is run to drive CPU utilization© IBM Corporation 2009 13All Rights Reserved
  14. 14. ReferencesComparing Costs of IBM PowerVM and x86 VMware for Enterprise Server Virtualizationftp://ftp.software.ibm.com/common/ssi/sa/wh/n/pol03023usen/POL03023USEN.PDFIBM PowerVMhttp://www.ibm.com/systems/power/software/virtualization/index.htmlIBM PowerVM Virtualizationftp://ftp.software.ibm.com/common/ssi/pm/sp/n/pod03015usen/POD03015USEN.PDFWhat’s New in VMware vSphere™ 4http://www.vmware.com/files/pdf/vsphere_performance_wp.pdfTransaction Processing Performance Councilhttp://www.tpc.orgSAP Standard Application Benchmarkshttp://www.sap.com/solutions/benchmark/index.epxStorage Performance Councilhttp://www.storageperformance.org/resultsAIM7 Benchmarkshttp://aimbench.sourceforge.net/DayTrader 2.0 Benchmarkshttp://cwiki.apache.org/GMOxDOC20/daytrader.htmlThanks to Yong Cai, Charles Farrell, Eric Stec, Bernie Carlson, Sergio Reyes, Mark Nellen, Bill Buros, Damon Bull, Terry Thomas,Ian Robinson, Lotus Douglas, William Bostic and Erin Burke IBM Systems and Technology Group. © IBM Corporation 2009 IBM Corporation Systems and Technology Group Route 100 Somers, New York 10589 Produced in the United States of America October 2009 The Power Architecture and Power.org wordmarks All Rights Reserved and the Power and Power.org logos and related marks are trademarks and service marks licensed by This document was developed for products and/or Power.org. services offered in the United States. IBM may not offer the products, features, or services discussed in UNIX is a registered trademark of The Open Group in this document in other countries. the United States, other countries or both. The information may be subject to change without Linux is a trademark of Linus Torvalds in the United notice. Consult your local IBM business contact for States, other countries or both. information on the products, features and services Microsoft, Windows, Windows NT and the Windows available in your area. logo are registered trademarks of the Microsoft All statements regarding IBM future directions and Corporation. intent are subject to change or withdrawal without Intel, Itanium and Xeon are registered trademarks and notice and represent goals and objectives only. MMX and Pentium are trademarks of Intel Corporation IBM, the IBM logo, ibm.com, POWER, POWER5, in the United States and/or other countries. POWER6, Power Systems, and PowerVM are AMD Opteron is a trademark of Advanced Micro trademarks or registered trademarks of International Devices, Inc. Business Machines Corporation in the United States, other countries, or both. If these and other IBM© IBM Corporation 2009 14All Rights Reserved
  15. 15. trademarked terms are marked on their first Java and all Java-based trademarks and logos are occurrence in this information with a trademark symbol trademarks of Sun Microsystems, Inc. In the United (® or ™), these symbols indicate U.S. registered or States and/or other countries. common law trademarks owned by IBM at the time this information was published. Such trademarks may TPC-C and TPC-H are trademarks of the Transaction also be registered or common law trademarks in other Performance Processing Council (TPPC). countries. A current list of IBM trademarks is available SPECint, SPECfp, SPECjbb, SPECweb, on the Web at "Copyright and trademark information" SPECjAppServer, SPEC OMP, SPECviewperf, at www.ibm.com/legal/copytrade.shtml SPECapc, SPEChpc, SPECjvm, SPECmail, Other company, product, and service names may be SPECimap and SPECsfs are trademarks of the trademarks or service marks of others. Standard Performance Evaluation Corporation (SPEC). IBM hardware products are manufactured from new parts, or new and used parts. In some cases, the SAP, mySAP and other SAP product and service hardware product may not be new and may have been names mentioned herein as well as their respective previously installed. Regardless, our warranty terms logos are trademarks or registered trademarks of SAP apply. AG in Germany and in several other countries all over the world. Copying or downloading the images contained in this document is expressly prohibited without the written SPC Benchmark-1 and SPC Benchmark-2 are consent of IBM. trademarks of the Storage Performance Council. This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final delivery to the buyer. Information concerning non-IBM products was obtained from the suppliers of these products or other public sources. Questions on the capabilities of the non-IBM products should be addressed with those suppliers. All performance information was determined in a controlled environment. Actual results may vary. Performance information is provided “AS IS” and no warranties or guarantees are expressed or implied by IBM. Buyers should consult other sources of information, including system benchmarks, to evaluate the performance of a system they are considering buying. When referring to storage capacity, 1 TB equals total GB divided by 1000; accessible capacity may be less. The IBM home page on the Internet can be found at: http://www.ibm.com. The IBM Power Systems home page on the Internet can be found at: http://www.ibm.com/systems/power/ POW03029-USEN-02© IBM Corporation 2009 15All Rights Reserved